TY - GEN AU - Rao,A. TI - Physico-chemical studies in relation to the genesis black and red soil of Bhopal KW - Soil types KW - Soil analysis KW - Soil chemico physical properties KW - Mineralogical soil types KW - Bhopal KW - properties N1 - Bhopal; IARI, Division of Soil Science and Agricultural Chemi ER -